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Table 1 Experimental model parameters and similarity ratios

From: Experimental study on disaster mechanism of completely weathered granite landslide induced by extreme rainfall

Parameter

Prototype

Model tests

Scale

Length (m)

lp = 210

lm = 7

Cl = lp/lm = 30

Density (kg/m3)

ρp = 1900

ρm = 1900

Cρ = ρp/ρm = 1

Cohesion (kPa)

cp = 19

cm = 0.63

Cc = cp/cm = 30

Friction

φp = 24

φm = 24

Cφ = φp/φm = 1

Deformation modulus (GPa)

Ep = 5.4

Em = 0.18

CE = Ep/Em = 30

Poisson's ratio

μp = 0.25

μm = 0.25

Cμ = μp/μm = 1

Osmotic Coefficient (m/d)

Kp = 4

Km = 0.73

CK = Kp/Km = √30

Rainfall intensity (mm/h)

qp

qm

Cq = qp/qm = √30

Rainfall time (h)

tp

tm

Ct = tp/tm = √30

Stress

σp

σm

Cσ = σp/σm = 30

Displacement

up

um

Cu = up/um = 30